EP2540240B1 - Outil thérapeutique pour endoscopes - Google Patents

Outil thérapeutique pour endoscopes Download PDF

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Publication number
EP2540240B1
EP2540240B1 EP12750105.4A EP12750105A EP2540240B1 EP 2540240 B1 EP2540240 B1 EP 2540240B1 EP 12750105 A EP12750105 A EP 12750105A EP 2540240 B1 EP2540240 B1 EP 2540240B1
Authority
EP
European Patent Office
Prior art keywords
force
main body
slider
section
operation section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP12750105.4A
Other languages
German (de)
English (en)
Other versions
EP2540240A1 (fr
EP2540240A4 (fr
Inventor
Keita Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Medical Systems Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Olympus Medical Systems Corp filed Critical Olympus Medical Systems Corp
Publication of EP2540240A1 publication Critical patent/EP2540240A1/fr
Publication of EP2540240A4 publication Critical patent/EP2540240A4/fr
Application granted granted Critical
Publication of EP2540240B1 publication Critical patent/EP2540240B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1442—Probes having pivoting end effectors, e.g. forceps
    • A61B18/1445—Probes having pivoting end effectors, e.g. forceps at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/03—Automatic limiting or abutting means, e.g. for safety
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B2017/2946—Locking means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/0091—Handpieces of the surgical instrument or device

Definitions

  • the present invention relates to a treatment tool for endoscope that is used by being endoscopically inserted into a body cavity.
  • a forceps having a pair of forceps members supported so as to be relatively rotatable to each other via a rotation shaft is known as a treatment tool for endoscope (hereinafter, simply referred to as a "treatment tool") which has a flexible sheath and is used by being endoscopically inserted into a body cavity.
  • the pair of forceps members is connected to an operation section of a hand side by an operation wire.
  • the pair of forceps members has a configuration that is relatively rotated around the rotation shaft, and is opened and closed, by the operation wire being advanced and retreated in an axial direction via the operation section.
  • Patent Document 1 suggests a treatment tool including display means which detects and displays an amount of force acted on a treatment section such as the forceps member accompanied by the operation of an operation slider for advancing and retreating the operation wire advanced and retreat using an amount of deflection of an elastic body.
  • An operator is able to adjust the amount of force acted on the treatment section by detecting the amount of force acted on the treatment section using the display means and adjusting an amount of operation of the operation slider.
  • Patent Document 2 discloses a surgical instrument having first and second cooperating jaws that are movable relative to each other selectively between open and closed positions, a structure for normally urging the jaws from their open position towards their closed position with a first predetermined force and a structure for urging the jaws towards the closed position therefor with a second predetermined force that is greater than the first predetermined force.
  • Patent Document 3 discloses a surgical forceps including an elongate probe formed of an outer tubular member and an inner member movable in the outer probe member, stationary and movable jaws coupled with the distal ends, respectively, of the outer and inner probe members, and a handle squeezable to move the movable jaw relative to the stationary jaw to rearwardly or forwardly cut tissue or to grasp tissue.
  • the treatment tools are inserted through a channel of the endoscope, and are inserted into a body cavity.
  • the endoscope can easily move erratically within a body, and in that case, the sheath inserted through the channel also expands and contracts along with the erratic movement of the endoscope.
  • the sheath expands and contracts, a relationship between the amount of operation of the operation section and the amount of force acted on the treatment section is changed.
  • the treatment tool for endoscope there is a limit to means for constantly maintaining the amount of operation of the operation section as means for adjusting the amount of force applied to the treatment section.
  • the present invention has been achieved in view of the above circumstances, and it is an object of the present invention to provide an treatment tool for endoscope capable of constantly maintaining the amount of force acted on the treatment section by an easier operation.
  • the treatment tool for endoscope of the present invention it is possible to constantly maintain an amount of force acted on the treatment section with the easier operation.
  • a treatment tool for endoscope of a first embodiment of the present invention will be described with reference to FIGS. 1 to 6 .
  • a treatment tool 1 of the present embodiment includes a treatment section 10 for treating tissues in a body cavity, an operation section 40 for operating the treatment section 10, an operation wire 20 for connecting the treatment section 10 to the operation section 40, and an elongated insertion section 30 inserted into the body cavity.
  • FIG. 2 is an enlarged view that shows a distal end portion of the treatment tool 1 including the treatment section 10 in a partial cross-section.
  • the treatment section 10 is configured so that a rotation shaft 13 is supported on a cover member 14 and a pair of forceps members including a first forceps member 11 and a second forceps member 12 is relatively and rotatably connected to and supported by the rotation shaft 13.
  • the operation wire 20 is connected to a proximal end side from the rotation shaft 13 of the respective forceps members 11 and 12.
  • the operation wire 20 is connected to the operation section 40 through inside of the insertion section 30.
  • the insertion section 30 is formed in a long cylinder shape through which the operation wire 20 is inserted, and has a coil sheath 31 and an insulating tube sheath 32 covering the outside of the coil sheath 31.
  • the cover member 14 is fixed to a distal end of the insertion section 30.
  • the rotation shaft 13 is supported on the cover member 14 so as not to be moved relative to the cover member 14.
  • a proximal end side of the insertion section 30 is attached to the operation section 40.
  • FIG 3 is an enlarged cross-sectional view of the operation section 40.
  • the operation section 40 includes an operation section main body 41 through which the operation wire 20 is inserted, a first slider (a first operation member) 42 slidably attached to the operation section main body 41, and a second slider (a second operation member) 43 slidably attached to the first slider 42.
  • the operation section main body 41 is formed of a resin or the like in a substantially cylindrical shape, and the interior thereof has a space through which the operation wire 20 is inserted.
  • a partial region of an outer circumferential surface of the operation section main body 41 in a longitudinal direction is formed with V grooves 41A extending in a circumferential direction.
  • a finger engaging handle 44 is provided on a proximal end side of the operation section main body 41.
  • the first slider 42 is formed of a resin or the like in a substantially cylindrical shape.
  • An inner diameter of the first slider 42 is slightly greater than an outer diameter of the operation section main body 41.
  • Circular through-holes 45 communicating with an inner cavity are formed in two places of the outer circumference of the first slider 42.
  • two through-holes 45 are formed at a position facing each other with an axis of the first slider 42 interposed therebetween, the placement need not necessarily be as described.
  • a part of the inserted operation section main body 41 is exposed to the respective through-holes 45.
  • a flexible tube 46 is arranged on an inner surface of the first slider 42 of the position at which the through-holes 45 are opened.
  • the respective through-holes 45 are caulked by the tube 46.
  • the tube 46 is fixed to the first slider 42 by a substantially cylindrical pressing member 47.
  • the pressing member 47 is formed with a through-hole 47A at a position corresponding to the through-hole 45.
  • the pressing member 47 is attached to the first slider 42 so that a phase of the through-hole 45 substantially coincides with that of the through-hole 47A of the pressing member 47 in a circumferential direction thereof.
  • the tube 46 is able to be deformed so as to protrude to the inner cavity of the first slider 42.
  • the inner diameter of the first slider 42 is substantially constant due to the attachment of the tube 46 and the pressing member 47.
  • a flange 49 protruding to the outside in a diameter direction is provided on an outer circumferential surface of the first slider 42.
  • the second slider 43 is formed of a resin or the like in a cylindrical shape, and the operation section main body 41 and the first slider 42 are inserted intoan inner cavity thereof.
  • the inner cavity of the second slider 43 is divided into a first inner cavity 51 of a distal end side and a second inner cavity 52 of a proximal end side by a wall section 50 protruding to the inner cavity over a circumferential direction.
  • the first inner cavity 51 is a substantially circular cylinder-shaped space in which the flange 49 of the first slider 42 can be moved.
  • An inner diameter of an opening of a distal end of the second slider 43 is set to be slightly greater than an outer diameter of the first slider 42, and a distal end wall section 53 is formed on the distal end side of the first inner cavity 51.
  • a coil spring 57 (a force adjustment member) is accommodated in the first inner cavity 51.
  • a part of the distal end side of the first slider 42 from the flange 49 is inserted into the coil spring 57. That is, the coil spring 57 is arranged between the flange 49 and the distal end wall section 53 in the first inner cavity 51 and is compressed when causing the second slider 43 to slide to the proximal end side with respect to the first slider 42.
  • the coil spring 57 presses the flange 49 of the first slider 42 so as to come into contact with the wall section 50 of the second slider 43. For this reason, the first slider 42 and the second slider 43 are integrated and slide with respect to the operation section main body 41.
  • the second inner cavity 52 is a substantially circular cylinder-shaped space having a diameter greater than that of the first inner cavity 51, and the through-hole 45 of the first slider 42 is opened.
  • a pattern member 54 for changing the diameter of the second inner cavity 52 is arrantged on an inner surface of the second slider 43 located on the second inner cavity 52.
  • the pattern member 54 is a substantially cylindrical member, and has a first region 54A with a thick thickness and relatively small inner diameter and a second region 54B with a thin thickness and relatively large inner diameter.
  • a slope surface-shaped third region 54C having a gradually changing inner surface is formed between the first region 54A and the second region 54B.
  • the pattern member 54 is attached to the second slider 43 so that the first region 54A is located at the distal end side. In an initial state before operating the treatment tool 1 shown in FIG. 3 , the through-hole 45 is located within the range of the second region 54B of the pattern member 54.
  • Pin members (force-retaining members) 55 are arranged by insertion into the respective through-holes 45 of the first slider 42 so as to protrude into the second inner cavity 52.
  • the pin members 55 can advance and retreat in the through-hole 45 so as to approach and separate from the operation section main body 41.
  • a first end section 55A inserted into the through-hole 45 is in contact with the tube 46 coulking the through-hole 45.
  • a second end section 55B of the pin member 55 protruding into the second inner cavity 52 is formed with a curved surface.
  • a protruding length of the pin member 55 to the second inner cavity 52 is set to be longer than a distance L1 between the inner surface of the pattern member 54 and the first slider 42 in the first region 54A and shorter than a distance L2 between the inner surface of the pattern member 54 and the first slider 42 in the second region 54B.
  • a proximal end section of the operation wire 20 is fixed to the first slider 42.
  • the operation wire 20 advances and retreats, and the pair of forceps members 11 and 12 of the treatment section 10 can be opened and closed.
  • the operation section 40 is provided with a plug 56 for supplying electricity to the treatment section 10.
  • a plug 56 for supplying electricity to the treatment section 10.
  • a high-frequency electric current can be supplied to the treatment section 10 via the operation wire 20.
  • an endoscope (not shown) is inserted into a body of a patient, and a distal end of the endoscope is caused to advance up to the vicinity of an in-body cavity tissue to be treated(a target tissue).
  • a user causes the second slider 43 to slide in the direction of the proximal end side of the operation section main body 41 (hereinafter, the operation in this direction is referred to as "retreating"). Then, since the first slider 42 slide with the second slider 43 in the retreating direction, the pair of forceps members 11 and 12 is in a closed state. The treatment section 10 and the insertion section 30 are inserted into the forceps channel of the endoscope in this state. Moreover, the treatment section 10 is projected from the distal end of the forceps channel.
  • the user operates the operation section 40 while observing the target tissue with the endoscope, and performs the treatment on the target tissue using the treatment section 10.
  • the second slider 43 When opening the pair of forceps members 11 and 12, the second slider 43 is caused to slide in the direction of the distal end side of the operation section main body 41 (herein, the operation of this direction is referred to as "advancing"). Then, since the first slider 42 slide with the second slider 43 in the advancing direction, the operation wire 20 connected to the first slider 42 advances. As mentioned above, the rotation shaft 13 is supported on the cover member 14 attached to the insertion section 30. For this reason, the first forceps member 11 and the second forceps member 12 are rotated around the rotation shaft 13 fixed to the insertion section 30, and then, the treatment section 10 is opened.
  • the target tissue is located between the first forceps member 11 and the second forceps member 12 and the user causes the second slider 43 to retreat, the target tissue is interposed between and grasped by the first forceps member 11 and the second forceps member 12.
  • the second slider 43 can slightly retreat even after the target tissue is interposed, when the target tissue is compressed to some degree, the second slider 43 can no longer retreat.
  • the pulling force is transmitted to the pair of forceps members 11 and 12 via the operation wire 20, and an interposing force by which the target tissue is interposed is increased.
  • the pin member 55 When the second slider 43 retreats relative to the first slider 42, the pin member 55 is relatively moved so as to advance in the second inner cavity 52, and comes into contact with the first region 54A of the pattern member 54. Then, the pin member 55 is pressed to the inner surface of the first region 54A, is pushed into the through-hole 45, and pushes the tube 46 toward the operation section main body 41. The pushed tube 46 protrudes into the inner cavity of the first slider 42, comes into contact with the operation section main body 41, and generates a large frictional force between the operation section main body 41. At this time, a part of the tube 46 enters and is engaged with the V groove 41 formed in the operation section main body 41. Thus, the first slider 42 is held by the frictional force so that it cannot substantially slide with respect to the operation section main body 41, and the amount of force acted on the target tissue from the treatment section 10 is constantly maintained.
  • the grasped target tissue is cauterized.
  • the treatment tool 1 of the present embodiment when the amount of force pulling on the second slider 43 is a predetermined magnitude, firstly, the coil spring 57 is compressed, and the interlocking between the first slider 42 and the second slider 43 is released. Thus, an excessive force is suppressed from being acted on the target tissue grasped by the treatment section 10.
  • the pin member 55 is moved so as to approach the operation section main body 41 from a state separated from the operation section main body 41, by the first region 54A of the pattern member 54 attached to the second slider 43.
  • the first slider 42 connected to the operation wire 20 is fixed to the operation section main body 41, and the an amount of force acted on the grasped target tissue is constantly maintained.
  • the acted force can be easily maintained in a fixed magnitude while preventing excessive force from being acted on the grasped target tissue.
  • the first slider 42 is fixed to the operation section main body 41 based on the amount of force acted on the slider but not the amount of movement of the slider. For this reason, even if the initial position of the slider is changed before the operation due to the fact that the insertion section 30 moves erratically in the forceps channel of the endoscope, the magnitude of the maximum force acted on the treatment section 10 is not changed. Thus, the maximum force of the treatment section can be set at a predetermined magnitude without being influenced by the use environment.
  • the pin member 55 can be smoothly and relatively moved toward the first region 54A in the second inner cavity 52 via the third region 54C.
  • the effect mentioned above can be obtained without greatly changing a feeling of operation of the user.
  • the timing in which the interlocking between the first slider 42 and the second slider 43 is released can be suitably adjusted, for example, by replacing the coil spring with a member of a different spring constant. Furthermore, the timing in which the first slider 42 is fixed to the operation section main body 41 can be suitably adjusted by changing an inner surface shape of the pattern member 54, for example, lengths of the first region 54A and the second region 54B or the like.
  • the force-retaining member is the pin member 55
  • the pin member 55 presses the tube 46 and causing the tube 46 to come into contact with the operation section main body 41 so that the first slider 42 is fixed to the operation section main body 41
  • the configuration of the force-retaining member is not limited thereto.
  • a pin member 59 having an engagement claw 59A in a first end section thereof as the force-retaining member may be arranged in the through-hole 47A of the pressing member 47.
  • the pin member 59 is biased so as to protrude to the outer circumferential surface of a first slider 60 by a biasing member such as a spring.
  • a biasing member such as a spring.
  • a mechanism for fixing the first slider to the operation section main body for example, it is possible to use various known mechanisms such as an aspect in which the pin member enters a hole formed in the operation section main body and functions as a knock pin.
  • a treatment tool 71 of the present embodiment is different from the treatment tool 1 of the first embodiment in that the former further includes a control section for controlling an amount of compression in the initial state of the force adjustment member.
  • FIG. 7 is a partially enlarged cross-sectional view that shows an operation section 72 of the treatment tool 71.
  • a first slider 73 is constituted by a first member 74 formed with the through-hole 45, and a second member (a control section) 75 screwed with the first member 74.
  • the second member 75 has an internal thread section 75A.
  • the internal thread section 75A is screwed with an external thread section 74A provided at the distal end side from the flange 49 of the first member 74, and thus the second member 75 is provided integrally with the flange 49.
  • an abutment flange 76 is provided in the first end section of the proximal end side of the part having the internal thread section 75A of the second member 75.
  • the coil spring 57 is arranged between the distal end wall section 53 and the abutment flange 76 in the first inner cavity 51.
  • a second end section of an opposite side (a distal end side) of the first end section protrudes to the distal end side from the second slider 43, and a substantially disc-shaped control dial 77 protruding to the outside in the diameter direction is provided.
  • the method of using the treatment tool 71 is the same as that of the treatment tool 1.
  • the treatment tool 71 when changing the screwing length between the first member 74 and the second member 75 by operating the control dial 77 provided in the operation section 72, as shown in the bottom half of FIG 7 , the abutment flange 76 is moved.
  • the abutment flange 76 is moved.
  • the user can perform the treatment in a state in which an operation is easiest by controlling the amount of compression of the coil spring 57 based on the feeling of operation.
  • control section may be provided in the second slider, for example, by allowing the position of the distal end wall section to be controlled by the same configuration.
  • a treatment tool 81 of the present invention is different from the treatment tools of each embodiments mentioned above in that the former further includes a maximum force control section which controls the maximum force generated in the treatment section.
  • FIG. 8 is a partially enlarged cross-sectional view that shows an operation section 82 of the treatment tool 81.
  • a pattern member (a maximum force control section) 84 is screwed with a second slider 83.
  • the pattern member 84 has a first region 84A, a second region 84B and a third region 84C, like the pattern member 54 of the first embodiment and the second embodiment.
  • the treatment tool 81 when changing the screwing length of the second slider 83 and the pattern member 84, a positional relationship between the pin member 55 and the pattern member 84 is changed. That is, the timing at which the first region 84A presses the pin member 55 is changed.
  • the timing at which the first slider 42 connected with the operation wire 20 is fixed to the operation section main body 41 can be controlled, and the maximum force generated in the treatment section can be controlled to a desired magnitude.
  • procedures or the like can be performed to the maximum force suitable for the type of procedure, target tissues or the like.
  • the configuration in which the maximum force of the treatment section is constantly maintained is not limited thereto.
  • FIG. 9 is an enlarged cross-sectional view of the operation section 40A in the treatment tool 1A of a modified example of the present invention.
  • the proximal end of the operation wire 20 is in an overlapping position with the pin member 55 and the tube 46 in the longitudinal direction of an operation section main body 85.
  • the operation section main body 85 has substantially the same external form as the operation section main body 41 mentioned above.
  • the operation section main body 85 has rigidity lower than that of the operation section main body 41 and is formed so as to be bent toward the operation wire 20 and deformed by the pressing of the pin member 55.
  • the first slider 42 is fixed to the operation section main body 85.
  • the operation section main body 85 pressed by the pin member 55 is bent and deformed, and the proximal end section of the operation wire 20 is interposed, and thus the operation section main body 85 and the operation wire 20 are fixed so as not to be relatively moved. Accordingly, the operation wire 20 is more reliably fixed, and the maximum force in the treatment section is more reliably maintained at a predetermined magnitude.
  • an elastic body may be used as the force adjustment member instead of the coil spring.
  • the structure of the treatment tool of the present invention can also be applied to a treatment tool which does not provide electricity to the treatment section.
  • the plug may not be provided.

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  • Life Sciences & Earth Sciences (AREA)
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  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
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  • Oral & Maxillofacial Surgery (AREA)
  • Surgical Instruments (AREA)

Claims (5)

  1. Outil de traitement (1, 1A, 71, 81) pour endoscope comprenant :
    une paire d'éléments de pince (11, 12) supportée de façon à être relativement mobile par un axe de rotation (13) ;
    une section d'actionnement (40) destinée à réaliser des opérations d'ouverture/fermeture de la paire d'éléments de pince (11, 12) ; et
    un câble d'actionnement (20) destiné à connecter la paire d'éléments de pince (11, 12) à la section d'actionnement (40), dans lequel
    la section d'actionnement (40) comprend :
    un corps principal (41) de section d'actionnement ;
    un premier élément d'actionnement (42) auquel le câble d'actionnement (20) est connecté, et qui est attaché de manière coulissante au corps principal (41) de section d'actionnement, dans lequel en faisant coulisser le premier élément d'actionnement (42) par rapport au corps principal (41) de section d'actionnement, la paire d'éléments de pince (11, 12) réalise des opérations d'ouverture/fermeture via le câble d'actionnement (20) ;
    un deuxième élément d'actionnement (43) qui est attaché au premier élément d'actionnement (42) de façon à être capable de coulisser par rapport au premier élément d'actionnement (42) ;
    un élément (57) d'ajustement de force qui est attaché au deuxième élément d'actionnement (43), et limite le coulissement du deuxième élément d'actionnement (43) par rapport au premier élément d'actionnement (42), dans lequel l'élément (57) d'ajustement de force est compressé conformément à l'application d'une quantité de force d'actionnement qui est supérieure à une force prédéterminée sur le deuxième élément d'actionnement (43), permettant de ce fait au deuxième élément d'actionnement (43) de coulisser par rapport au premier élément d'actionnement (42) ; et
    un élément (55) de maintien de force qui s'approche du corps principal (41) de section d'actionnement conformément au coulissement du deuxième élément d'actionnement (43) par rapport au premier élément d'actionnement (42), dans lequel le premier élément d'actionnement (42) est fixé au corps principal (41) de section d'actionnement par l'élément (55) de maintien de force approchant le corps principal (41) de section d'actionnement.
  2. Outil de traitement (1, 1A, 71, 81) pour endoscope selon la revendication 1, dans lequel
    le premier élément d'actionnement (42) comporte un trou traversant (45) qui s'étend dans une direction perpendiculaire à une direction de coulissement et expose une partie du corps principal (41) de section d'actionnement, et
    l'élément (55) de maintien de force est une tige (55, 59) placée dans le trou traversant (45).
  3. Outil de traitement (1, 1A, 71, 81) pour endoscope selon la revendication 1, comprenant en outre :
    une section de commande (75) qui commande une quantité de compression dans un état initial de l'élément (57) de justement de force.
  4. Outil de traitement (1, 1A, 71, 81) pour endoscope selon la revendication 1, comprenant en outre :
    une section (84) de commande de force maximale qui commande une quantité de force générée dans une section de traitement dans un état dans lequel le premier élément d'actionnement (42) est fixé au corps principal (41) de section d'actionnement.
  5. Outil de traitement (1, 1A, 71, 81) pour endoscope selon la revendication 1, dans lequel
    le deuxième élément d'actionnement (43) présente un élément à motif (54) comprenant une première région (54A) pour presser l'élément (55) de maintien de force, et
    par la première région (54A) pressant l'élément (55) de maintien de force sur le corps principal (41) de section d'actionnement conformément à un coulissement du deuxième élément d'actionnement (43) par rapport au premier élément d'actionnement (42), l'élément (55) de maintien de force s'approche du corps principal (41) de section d'actionnement.
EP12750105.4A 2011-02-23 2012-01-10 Outil thérapeutique pour endoscopes Not-in-force EP2540240B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011037222A JP2014087378A (ja) 2011-02-23 2011-02-23 内視鏡用処置具
PCT/JP2012/050246 WO2012114786A1 (fr) 2011-02-23 2012-01-10 Outil thérapeutique pour endoscopes

Publications (3)

Publication Number Publication Date
EP2540240A1 EP2540240A1 (fr) 2013-01-02
EP2540240A4 EP2540240A4 (fr) 2013-01-02
EP2540240B1 true EP2540240B1 (fr) 2015-03-04

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Application Number Title Priority Date Filing Date
EP12750105.4A Not-in-force EP2540240B1 (fr) 2011-02-23 2012-01-10 Outil thérapeutique pour endoscopes

Country Status (5)

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US (1) US9155586B2 (fr)
EP (1) EP2540240B1 (fr)
JP (1) JP2014087378A (fr)
CN (1) CN102770084B (fr)
WO (1) WO2012114786A1 (fr)

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CN102770084B (zh) 2014-11-12
EP2540240A1 (fr) 2013-01-02
WO2012114786A1 (fr) 2012-08-30
EP2540240A4 (fr) 2013-01-02
US20130012986A1 (en) 2013-01-10
JP2014087378A (ja) 2014-05-15
US9155586B2 (en) 2015-10-13

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